Introduction After the first wave of COVID-19 pandemic, with relief restrictive measures imposed on companies, it is pertinent to assess immunity acquired SARS-CoV-2 in working population. Objectives To evaluate prevalence specific antibodies against and analyze presumed a sample workers from company region Aveiro. Methodology This an observational study, population 400 workers, estimating 197....

BACKGROUND The objective of this study was to determine the prevalence of Chlamydia trachomatis among both men and women seeking help at an infertility clinic, and to prospectively follow the effect of previous infection on pregnancy rates and pregnancy outcome after a long follow-up period (mean 37 months). METHODS A total of 244 infertile couples was tested for C. trachomatis IgG antibodies...

Chronic idiopathic thrombocytopenic purpura (chronic ITP) is an autoimmune disorder characterized by bleeding tendency and the presence of auto-antibody to platelets. Quantitative analysis of the level of anti-platelet antibodies and platelet associated antibodies is now possible. Furthermore, recent immunological techniques have enabled us to detect target platelet antigens in chronic ITP. In ...

Serum obtained from normal human subjects contains antibodies reactive in an enzyme-linked immunosorbent assay with the glucuronoxylomannan (GXM) of Cryptococcus neoformans. The frequency of occurrence of class-specific antibodies among normal subjects was 28% for immunoglobulin G (IgG), 98% for IgM, and 3% for IgA. Anti-GXM antibodies with kappa light chains occurred in 98% of normal subjects,...

Toxoplasmosis has been associated with economic and public health concerns due to abortion in humans animals. Detection for the presence of anti-Toxoplasma gondii antibodies sera 174 healthy sheep (IgG) 89 aborted women (IgG, IgM, IgG avidity) using enzyme-linked immunosorbent assay T. 59 milk samples identified by PCR. The primary risk factors seropositive were also analyzed. Relatively higher...

Complement activation, cell surface-receptor binding, blocking activity, and possibly placental transfer are among the biologically important functional differences that have been detected between the four human IgG subclasses by use of polyclonal antisera. In 1985, a IUIS/WHO panel of immunologists, using eight immunological methods, documented the specificity of select monoclonal antibodies f...

BACKGROUND Although several studies have demonstrated an association between infection with Chlamydia pneumoniae and asthma, these were mainly limited to exacerbation of symptoms in adults with known asthma OBJECTIVE We investigated the role of C. pneumoniae infection in 149 atopic children with chronic cough and asthma, comparing them with 241 control non-atopic subjects presenting at Olomou...

Quantitative isotype specific enzyme linked immunosorbent assay (ELISA) was used to determine the distribution of immunoglobulin isotypes and phospholipid specificities of anticardiolipin (anti-CL) antibodies in 40 patients with one or more of the following 'antiphospholipid (anti-PL) antibody associated clinical complications'--namely, thrombosis, fetal loss, thrombocytopenia. Twelve of 40 pat...